阅读说明：本技术 一种天线 (Antenna ) 是由 陈德智 刘宁民 陆文 于 2020-12-30 设计创作，主要内容包括：本发明涉及电子电路技术领域,公开了一种天线,包括：柔性线路板、支架和天线振子,其中,所述柔性线路板固定于所述支架的底面,所述天线振子固定于所述支架的顶面；所述柔性线路板上设置有设备接口和功分网络,所述功分网络与所述设备接口连接获取信号,并通过所述功分网络末端的馈电点,将信号耦合馈电给所述天线振子。利用柔性线路板工艺,将功分网络线路做到柔性线路板上,然后通过粘胶或者热熔的方法将天线振子固定在高分子支架上。具有能将天线振子和功率分配网络集成在一个产品上,且相对现有技术中的方案,价格更低的优点。(The invention relates to the technical field of electronic circuits, and discloses an antenna, which comprises: the antenna comprises a flexible circuit board, a support and an antenna oscillator, wherein the flexible circuit board is fixed on the bottom surface of the support, and the antenna oscillator is fixed on the top surface of the support; the flexible circuit board is provided with an equipment interface and a power distribution network, the power distribution network is connected with the equipment interface to acquire signals, and the signals are coupled and fed to the antenna oscillator through a feed point at the tail end of the power distribution network. The power distribution network circuit is arranged on the flexible circuit board by utilizing a flexible circuit board process, and then the antenna oscillator is fixed on the polymer bracket by using an adhesive or a hot melting method. The antenna element and the power distribution network can be integrated on one product, and compared with the scheme in the prior art, the cost is lower.)

1. An antenna, comprising: the antenna comprises a flexible circuit board, a support and an antenna oscillator, wherein the flexible circuit board is fixed on the bottom surface of the support, and the antenna oscillator is fixed on the top surface of the support;

the flexible circuit board is provided with an equipment interface and a power distribution network, the power distribution network is connected with the equipment interface to acquire signals, and the signals are coupled and fed to the antenna oscillator through a feed point at the tail end of the power distribution network.

2. The antenna of claim 1, wherein the power division network comprises a first power division network channel and a second power division network channel;

the first power division network channel and the second power division network channel respectively correspond to two polarizations of the power division network, and the first power division network channel and the second power division network channel are adjacent;

the device interfaces include a first device interface and a second device interface, the first device interface is connected to the first power division network channel and provides signals for the first power division network channel, and the second device interface is connected to the second power division network channel and provides signals for the second power division network channel.

3. The antenna of claim 2, further comprising:

the antenna element comprises a first antenna element, a second antenna element and a third antenna element;

the feeding points comprise a first feeding point, a second feeding point, a third feeding point, a fourth feeding point, a fifth feeding point and a sixth feeding point;

the first power distribution network channel respectively couples and feeds signals to the first antenna element, the second antenna element and the third antenna element through the first feeding point, the second feeding point and the third feeding point;

the second power distribution network channel couples and feeds signals to the first antenna element, the second antenna element and the third antenna element through the fourth feeding point, the fifth feeding point and the sixth feeding point respectively.

4. The antenna of claim 1, further comprising: a reflecting plate:

the reflecting plate and the support are respectively arranged on two sides of the flexible circuit board, and the flexible circuit board is clamped between the reflecting plate and the support.

5. The antenna of claim 1, further comprising:

the flexible circuit board is made of materials including an MPI board, and the adhesive of the flexible circuit board is low-loss double-sided adhesive;

the bracket is made of insulating materials including high polymers, and the bracket and the flexible circuit board are fixed in a viscose or hot melting mode;

the antenna oscillator is made of materials including metal plates, PCBs and FPCs; the fixing device is fixed on the bracket by using methods including hot melting, gluing and insert injection molding.

6. The antenna of claim 1, further comprising:

the power distribution network and the equipment interface are connected in a mode including welding and contact connection.

7. The antenna of claim 1, further comprising:

the flexible circuit board can be pasted on the two-dimensional curve.

8. The antenna of claim 1, further comprising:

the equipment interface is a connector;

the equipment interface is also connected with a connecting terminal for connecting external equipment.

Technical Field

The invention relates to the technical field of electronic circuits, in particular to an antenna.

Background

At present, in the field of base stations or small base stations, a scheme of integrating an antenna element and a power distribution network (power distribution network) into one product has been applied to some extent. The scheme can be used for realizing modular production, thereby improving the overall yield of products and reducing the working hour of antenna assembly. The current integration schemes are:

1. the power distribution network adopts a high-frequency PCB, and the antenna element and the balun adopt a high-frequency PCB or FR4 PCB. The disadvantages are that the high frequency PCB is expensive, the assembly time is more, the unit price of the whole product is more expensive, and the yield is not high;

2. the power distribution network adopts a high-frequency PCB, the antenna oscillator adopts a sheet metal scheme, and the antenna oscillator is welded on the PCB, so that the price is reduced to some extent compared with the first scheme. But the overall cost is not obviously reduced because the high-frequency PCB is still provided;

3. selective plating of plastic parts, such as LDS (LDSER DIRECT stuctrue) or LMP (laser MODIFIED plating), integrates a power distribution network and an antenna into one plastic part, and has the disadvantages that both LDS and LMP processes require laser pre-plating treatment, and thus, the process is complicated, the productivity is not high, and the yield is not high. The overall cost is high;

4. and (3) selectively plating the plastic part by adopting a two-color injection molding method, selecting the second color from the plating-available plastic, performing chemical plating on the power distribution network on the second color, and then performing chemical plating. Because the whole plastic part is plated and electroplated, the volume is large, and the filling efficiency of the chemical plating tank is influenced. And therefore the cost is also slightly higher.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide an antenna, which utilizes a flexible circuit board process to implement a power distribution network circuit on a flexible circuit board, and then fixes an antenna oscillator on a polymer bracket by using an adhesive or a hot-melting method. The antenna element and the power distribution network can be integrated on one product, and compared with the scheme in the prior art, the cost is lower.

The above object of the present invention is achieved by the following technical solutions:

an antenna, comprising: the antenna comprises a flexible circuit board, a support and an antenna oscillator, wherein the flexible circuit board is fixed on the bottom surface of the support, and the antenna oscillator is fixed on the top surface of the support;

the flexible circuit board is provided with an equipment interface and a power distribution network, the power distribution network is connected with the equipment interface to acquire signals, and the signals are coupled and fed to the antenna oscillator through a feed point at the tail end of the power distribution network.

Further, the power division network includes a first power division network channel and a second power division network channel;

the first power division network channel and the second power division network channel respectively correspond to two polarizations of the power division network, and the first power division network channel and the second power division network channel are adjacent;

the device interfaces include a first device interface and a second device interface, the first device interface is connected to the first power division network channel and provides signals for the first power division network channel, and the second device interface is connected to the second power division network channel and provides signals for the second power division network channel.

Further, the antenna further includes: a first power divider and a second power divider;

the first power divider is arranged on the first power dividing network channel, and couples and feeds signals on the first power dividing network channel to different antenna elements through different feeding points;

the second power divider is disposed on the second power dividing network channel, and couples and feeds the signal on the second power dividing network channel to different antenna elements through different feeding points.

Further, the antenna elements comprise a first antenna element, a second antenna element and a third antenna element; the feeding points comprise a first feeding point, a second feeding point, a third feeding point, a fourth feeding point, a fifth feeding point and a sixth feeding point;

the first power distribution network channel respectively couples and feeds signals to the first antenna element, the second antenna element and the third antenna element through the first feeding point, the second feeding point and the third feeding point;

the second power distribution network channel couples and feeds signals to the first antenna element, the second antenna element and the third antenna element through the fourth feeding point, the fifth feeding point and the sixth feeding point respectively.

Further, the antenna further includes: a reflecting plate:

the reflecting plate and the support are respectively arranged on two sides of the flexible circuit board, and the flexible circuit board is clamped between the reflecting plate and the support.

Further, the reflecting plate further comprises a first baffle plate and a second baffle plate;

the first baffle and the second baffle are arranged on two sides of the reflecting plate.

Furthermore, the flexible circuit board is made of materials including an MPI (multi-layer printed circuit board) plate, and the adhesive of the flexible circuit board is low-loss double-sided adhesive;

the bracket is made of insulating materials including high polymers, and the bracket and the flexible circuit board are fixed in a viscose or hot melting mode;

the antenna oscillator is made of materials including metal plates, PCBs and FPCs; the fixing device is fixed on the bracket by using methods including hot melting, gluing and insert injection molding.

Further, the power distribution network and the device interface are connected in a manner including welding and contact connection.

Further, the flexible circuit board may be attached to the two-dimensional curve.

Further, the device interface is a connector; the equipment interface is also connected with a connecting terminal for connecting external equipment.

Compared with the prior art, the invention has the beneficial effects that:

by providing an antenna comprising: the antenna comprises a flexible circuit board, a support and an antenna oscillator, wherein the flexible circuit board is fixed on the bottom surface of the support, and the antenna oscillator is fixed on the top surface of the support; the flexible circuit board is provided with an equipment interface and a power distribution network, the power distribution network is connected with the equipment interface to acquire signals, and the signals are coupled and fed to the antenna oscillator through a feed point at the tail end of the power distribution network. According to the technical scheme, the power distribution network circuit is arranged on the flexible circuit board by utilizing a flexible circuit board process, and then the antenna oscillator is fixed on the polymer support through an adhesive or hot melting method. The antenna element and the power distribution network can be integrated on one product, and compared with the scheme in the prior art, the cost is lower.

Drawings

FIG. 1 is an overall schematic view of the antenna of the present invention without a reflector plate;

FIG. 2 is a bottom view of the antenna of the present invention without the reflector plate;

fig. 3 is an overall cross-sectional view of the antenna of the present invention without a reflector plate;

FIG. 4 is a partial schematic view of a flexible circuit board according to the present invention;

FIG. 5 is an overall schematic view of the antenna with reflector plate of the present invention;

FIG. 6 is a bottom view of the antenna with reflector plate of the present invention;

fig. 7 is an overall sectional view of the antenna with the reflection plate.

Reference numerals

1. A flexible circuit board;

11. an equipment interface; 111. a first device interface; 112. a second device interface;

12. a power distribution network; 121. a first power division network channel; 122. a second power division network channel;

13. a feed point; 131. a first feeding point; 132. a second feeding point; 133. a third feeding point; 134. a fourth feeding point; 135. a fifth feeding point; 136. a sixth feeding point;

14. a power divider; 141. a first power divider; 142. a second power divider;

2. a support;

3. an antenna element; 31. a first antenna element; 32. a second antenna element; 33. a third antenna element;

4. a connection terminal;

5. a reflective plate;

51. a first baffle plate; 52 second baffle.

Detailed Description

Unless otherwise defined, technical or scientific terms used herein in the specification and claims should have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It is noted that in the detailed description of these embodiments, in order to provide a concise description, all features of an actual implementation may not be described in detail.

Example one

As shown in fig. 1 to 4, the present embodiment provides an antenna including: the antenna comprises a flexible circuit board 1, a support 2 and an antenna oscillator 3, wherein the flexible circuit board 1 is fixed on the bottom surface of the support 2, and the antenna oscillator 3 is fixed on the top surface of the support 2; the flexible circuit board 1 is provided with an equipment interface 11 and a power distribution network 12, the power distribution network 12 is connected with the equipment interface 11 to obtain signals, and the signals are fed to the antenna oscillator 3 through a feed point 13 at the tail end of the power distribution network 12 in a coupling mode.

Specifically, the difference between the present invention and the conventional scheme of integrating the antenna oscillator 3 and the power distribution network 12 into one product is that the power distribution network 12 is fixed to the flexible circuit board 1 by using the flexible circuit board process, and the power distribution network 12 fixed by using the flexible circuit board 1 is cheaper than the conventional scheme, on one hand, because the flexible circuit board 1 has certain flexibility, the power distribution network 12 also has certain flexibility, and the flexible circuit board 1 can be attached to any two-dimensional curved surface.

Further, the power distribution network 12 includes a first power distribution network channel 121 and a second power distribution network channel 122;

the first power division network channel 121 and the second power division network channel 122 respectively correspond to two polarizations of the power division network 12, and the first power division network channel 121 and the second power division network channel 122 are adjacent to each other; the device interface 11 includes a first device interface 111 and a second device interface 112, the first device interface 111 is connected to the first power division network channel 121 to provide a signal for the first power division network channel 121, and the second device interface 112 is connected to the second power division network channel 122 to provide a signal for the second power division network channel 122.

Specifically, each power distribution network 12 has two polarizations, and the power distribution network 12 is divided into two channels including a first power distribution network channel 121 and a second power distribution network channel 122, where the two channels are respectively and simultaneously used for coupling and feeding the plurality of antenna elements 3.

Further, each channel needs to simultaneously couple and feed a plurality of antenna elements 3, so the antenna is further designed with a power divider 14, which transmits signals in the channels to different feeding points 13 respectively to feed different antenna elements 3. The method specifically comprises the following steps: a first power divider 141 and a second power divider 142;

the first power divider 141 is disposed on the first power dividing network channel 121, and couples and feeds the signal on the first power dividing network channel 121 to different antenna elements 3 through different feeding points 13; the second power divider 142 is disposed on the second power dividing network channel 122, and couples and feeds the signal on the second power dividing network channel 122 to different antenna elements 3 through different feeding points 13.

Further, in the present embodiment, the antenna element 3 includes a first antenna element 31, a second antenna element 32, and a third antenna element 33; the feeding points 13 include a first feeding point 131, a second feeding point 132, a third feeding point 133, a fourth feeding point 134, a fifth feeding point 135 and a sixth feeding point 136;

the first power distribution network channel 121 couples and feeds signals to the first antenna element 31, the second antenna element 32 and the third antenna element 33 through the first feeding point 131, the second feeding point 132 and the third feeding point 133, respectively; the second power distribution network channel 122 couples and feeds signals to the first antenna element 31, the second antenna element 32 and the third antenna element 33 through the fourth feeding point 134, the fifth feeding point 135 and the sixth feeding point 136, respectively.

Further, the flexible circuit board 1 is made of a material including an MPI board material with low loss, and the adhesive of the flexible circuit board 1 is a low-loss double-sided adhesive; the bracket is made of insulating materials including high polymers, and the bracket 2 and the flexible circuit board 1 are fixed in a viscose or hot melting mode; the antenna oscillator 3 is made of materials including metal plates, a PCB (printed Circuit Board) and an FPC (Flexible printed Circuit); fixed to the support 2 using methods including hot melt, adhesive, insert injection molding.

Further, the power distribution network 12 and the device interface 11 are connected by a method including welding and contact connection.

Further, the device interface 11 is a connector; the device interface 11 is further connected with a connecting terminal 4 for connecting an external device.

Example two

The present embodiment is basically the same as the first embodiment in structure, and is different in that the antenna further includes: the reflection plate 5:

the reflecting plate 5 and the support 2 are respectively arranged on two sides of the flexible circuit board 1, and the flexible circuit board 1 is clamped between the reflecting plate 5 and the support 2.

Further, the reflecting plate 5 further includes a first baffle 51 and a second baffle 52;

the first barrier 51 and the second barrier 52 are disposed on both sides of the reflection plate 5.

The reflecting plate 5 is made of metal, such as aluminum alloy.

The reflector 5 is provided to maximize concentration of signals transmitted through the power distribution network 12 into the antenna element 3.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.